Finding the Fourth Proportional to 648,872,907.12, 896,632,402.68 and 472,354,446.87
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Solution
The fourth proportional to 648,872,907.12, 896,632,402.68 and 472,354,446.87 is: 652,713,802.60
Step by Step Solution
- Step 1: Write the proportion equation
648,872,907.12 : 896,632,402.68 = 472,354,446.87 : x - Step 2: Convert to fraction form
648,872,907.12/896,632,402.68 = 472,354,446.87/x - Step 3: Cross multiply
648,872,907.12x = 896,632,402.68 × 472,354,446.87 - Step 4: Simplify right side
648,872,907.12x = 423,528,302,613,630,464 - Step 5: Solve for x
x = 423,528,302,613,630,464/648,872,907.12 - Step 6: Final answer
x = 652,713,802.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.